I bet you didn't know the NIV takes a stronger stand against homosexuality than the KJV...
NIV (1984 translation)
1 Cor 6:9
9 Or do you not know that wrongdoers will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral nor idolaters nor adulterers
nor men who have sex with men[a]
KJV
9Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor
effeminate, nor abusers of themselves with mankind,
Notice the only reference is to effeminate and abusers of themselves with mankind.
Some may say effeminate means gay, but let's take a look at the definition provided by Noah Websters 1828 dictionary, the one most consider as inspired as the KJV...
EFFEM''INATE, a. [L. effoeminatus, from effoeminor, to grow or make womanish, from foemina, a woman. See Woman.]
1. Having the qualities of the female sex; soft or delicate to an unmanly degree; tender; womanish; voluptuous.
The king, by his voluptuous life and mean marriage, became effeminate, and less sensible of honor.
2. Womanish; weak; resembling the practice or qualities of the sex; as an effeminate peace; an effeminate life.
3. Womanlike, tender, in a sense not reproachful.
Webster's Revised Unabridged Dictionary (1913) - The ARTFL Project
Notice effeminate has to do with being woman like, it has nothing to do with sexual behavior.
So if the KJV onlyer is going to be intellectually consistent based on the sources they consider credible, ie the KJV and Noah Webster 1828, they have to admit the NIV is stronger against homosexuality than the KJV!
One more verse....
NIV...(2011 translation)
1 Timothy 1:10
for the sexually immoral, for
those practicing homosexuality, for slave traders and liars and perjurers—and for whatever else is contrary to the sound doctrine
KJV
10For whoremongers, for them that defile themselves with mankind, for menstealers, for liars, for perjured persons, and if there be any other thing that is contrary to sound doctrine;
KJV